Chemistry, 24.09.2019 20:20 jaylinthornton6
An object with a mass of 100 kg is dropped from a height of 20 m. if the velocity of the object before hitting the ground is 15 m/s, is there a loss of energy in the form of heat? if so, how much? assume, g= 9.8 m/s^2
Answers: 2
![ΔK=\frac{1}{2}mv_{f} ^{2} - \x]frac{1}{2}mv_{i} ^{2}=\frac{1}{2}*100*15^{2} - \frac{1}{2}*100*0^{2}=11250 J](/tpl/images/0259/1002/e235e.png)
![mgh_{f}-mgh_{i}=100*9,8*0-100*9,8*20=-19600[J]](/tpl/images/0259/1002/36025.png)
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An object with a mass of 100 kg is dropped from a height of 20 m. if the velocity of the object befo...
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